Heat-resistant paint on metal and the sphere of its application

Heat-resistant paint on metal and the sphere of its application

It is possible to learn features and specifics of such finishing material from this article as heat-resistant paint on metal. In the text the main criteria for selection of structures, classification of the existing materials showing resistance to influence of high temperatures, their advantages and shortcomings, average quotations on purchase of popular dyes are stated. Article considers the possibility of coloring of metal surfaces of brazier, the furnace, etc.

Heat-resistant paint on metal: properties and classification of structures

Many owners of country houses face problem of finishing of the fireplaces, furnaces and other objects made of metal. This type of material is vulnerable to influence of moisture and other environmental factors therefore updating of paint coat is directed not only to maintenance of esthetic exterior, but also to extension of operational terms of the design.

Not each finishing material is capable to sustain influence of high temperature. Therefore for processing of oven and chimney designs specialists recommend to buy heat-resistant paint on metal.

Pay attention! The normal structure is capable to sustain influence of temperature no more than 40-50 °C. Designs of the iron furnaces installed in bath are heated up to 600-800 °C. In Sohn of burning this indicator can reach nearly 1000 °C. Professionals recommend to select structure taking into account furnace type, degree of necessary thermal stability depends on it. For example, brick walls of furnaces are capable to get warm only up to 200 °C.

Features and properties of heat-resistant paint on metal up to 1000 degrees

The thermal firmness of such dyes is caused by presence of silicon elements at their structure. In addition, material contains fillers, polymers and coloring pigments. Thanks to these components dye provides to metal corrosion protection and environmental activities.

High strength is inherent to the polymers which are present at structure. As a rule, they are made on the basis of oxygen, silicon and organic radicals. On it the list of the components providing thermal firmness to fire-resistant paint on metal for brazier or the furnace does not come to an end. High parameter of stability is caused by aluminum powder.

The operational term of the majority of heat-resistant dyes reaches 15 years. The way of putting material and also volume of organic pitches in its structure affects elasticity and adhesive properties of covering, time of its drying.

Advantages of heat-resistant paints on metal for furnaces:

  • electric insulation properties – material is suitable for finishing of metal designs on which there can pass electricity;
  • anticorrosive protection – heat-resistant paint prevents destruction of metal under the influence of moisture;
  • resistance to influence of hostile environment – is provided protection against negative impact of chemicals;
  • ability to keep properties at high and low temperatures and also sharp differences;
  • plasticity – in the course of heating metal is subject to expansion therefore finishing will drag on instead of becoming covered by cracks and to be showered.

Classification of fire-resistant paints by metal

Heat-resistant dyes are classified by different signs. Most often structures are divided by packing type. Consumers can buy heat-resistant paint on metal for the furnace or brazier in the form of barrel of 400-500 ml, banks (weight from 1 kg), buckets or barrels. Structure volume in bucket can vary within 10-20 kg. The spaciousness of barrels is 40 kg and more.

Pay attention! The period of storage of heat-resistant dye depends on the producer and components. However the minimum term of any material is 7 months.

Materials also differ on way of drawing. Most often for these purposes the roller, brush or the sprayer is used. The structure expense depends on the tool used for coloring of surface. For example, if to apply heat-resistant enamel on metal by means of brush, then the consumption of material will be 20-40% more, than when using spray. The covering received as a result of it turns out almost identical in on firmness. Also application of aerosol way of drawing is followed by the increased consumption of dye.

Irrespective of way of drawing surely it is necessary to select dye with high adhesive properties. In other words, the structure has to be fixed well on metal surface. Only provided that the covering will be able to provide the reliable level of protection against corrosion damage.

Range of application of heat-resistant paints on metal

Heat-resistant dyes are used for finishing of the products operated in the conditions of strong influence of moisture and high temperatures.

Possibilities of such structures will be useful for such objects:

  • sweating rooms;
  • saunas;
  • drying chambers (for these conditions it is recommended to buy fire-prevention paint on metal, capable to sustain from 600 to 1000 °C);
  • furnaces;
  • braziers.

Structures, quite often steady against temperatures, are applied to processing of elements of heating systems. Enamels with similar properties are widely used also in the automobile building industry. Especially for it dyes for mufflers, brakes, parts of engines and other elements are produced.

Mainly such dyes are used for processing of metal surfaces though on sale it is possible to meet structures with similar properties for processing of brick, stone and wood.

Important! Before paint acquisition surely it is necessary to study the instruction of the producer and its recommendations for use of structure on certain surfaces. If opening of oven design in bath is supposed, it is necessary to take care that finishing not only showed resistance to temperature, but also maintained moisture influence.

Kinds of heat-resistant paints on metal: types of finishing materials on structure

The structure of components in finishing material is extremely important. Degree of firmness of dye and temperature conditions in which it is possible to apply it depends on it.

Taking into account the aforesaid mark out the following categories of structures:

  • alkyd;
  • epoxy;
  • dyes on the basis of heat-resistant glass and composite materials;
  • ethylsilicate and epoxy-ether (one-component);
  • silicone (one-component).

Alkyd or acrylic dyes – are applied to processing of parts of heating systems. They are capable to maintain temperature to 100 °C. The category includes materials with zinc and zinc – phosphatic connections.

Epoxy dyes can maintain influence of temperature which is not exceeding indicator in 200 °C. Some types of dyes do not need preliminary putting primer on the surface of metal.

The temperature limit of ethylsilicate and epoxy-ether dyes makes 400 °C. As a part of such materials metal powder contains. Such structures are used for processing of braziers and barbecue.

Single-component silicone structures fully maintain influence of temperature to 650 °C. As basis for creation of such dyes producers use silicone pitches of polymeric type. Quite often aluminum powder is added to composition of material.

Structures with heat-resistant glass and composite materials maintain temperature from 650 to 1000 °C.

Heat-resistant paint on metal and the sphere of its application

What is better to buy heat-resistant paint on metal: choice of structure

To pick up optimum dye, it is necessary to consider the main criteria which are put forward to materials of this kind:

  • heat resistance level;
  • the coloring temperature recommended by the producer;
  • time before full drying (no more than 3 days);
  • technical characteristics of structure.

On sale dyes meet different degree of heat resistance – from 120 to 1000 °C. This indicator is selected taking into account conditions in which she will be exploited. The highest heating characterizes the metal furnace (800 °C), the maximum limit of the radiators of heating established in apartments – 90 °C.

Helpful advice! If to add to composition of heat resisting paint on metal for brazier organic pitch, it is possible to accelerate time of drying of covering and also to enhance plasticity and adhesive properties.

The quality of result of coloring depends on whether it is supported all requirements of technology of drawing. Preliminary surface preparation, the scheme of imposing of material, temperature condition to which it is necessary to adhere during operating time is among these requirements. In most cases specialists recommend to make coloring of metal surfaces at air temperature from-30 to 40 °C. The subsequent operation and life cycle of covering depends on it.

With what paint to paint brazier from metal: heat-resistant, heat-resistant and fire-resistant structures

Metal surfaces which are exposed during operation to strong heating become covered with fire-resistant, heat-resistant or heat-resistant dyes. Heat-resistant options of finishing are recommended to be used for covering of designs which temperature does not rise above indicator in 600 °C.

Use of such dyes for the processing of metal parts of the brick furnace or designs which are completely made of this material including braziers is allowed. At the same time you should not apply heat-resistant structure on the surface of the equipment installed in bath. Most often such furnaces heat up to 800 °C. Therefore it is better for these purposes to use heat-resistant dyes.

Fire-resistant options of finishing are developed for coloring of products which are in close proximity or contact to naked flame. For braziers and barbecue it is optimal variant. Use of similar dyes for processing of other objects will be inexpedient and will cause unjustified expenses.

For products which are exposed to heating no more 200ºC it is the best of all to buy heat-resistant paint on metal in barrel. High-temperature structures are applied to coloring of radiators and elements of heating systems in apartments and houses, parts of automobile engines and also seams and laying of the furnaces manufactured brick. The heat-resistant varnishes maintaining heating 250-300ºC will also be suitable for low temperature conditions.

Pay attention! You should not confuse fire-resistant structures with fireproof dyes. At strong heating such materials can be blown up, become covered by bubbles and block access of oxygen to surface, preventing its destruction.

Recommendations about the choice of optimum heat-resistant paint for furnaces

If to cover the metal furnace with normal dye, the covering will very quickly turn black and will become source of smoke and unpleasant smells. The structure has to correspond to type of surface on which it will be applied. Scope of application is always specified the producer on packaging. If the structure is intended for processing of different materials, all this information more in small print can be found on bank. In the absence of these data and also the name of brand it is worth refusing acquisition. Such doubtful dyes can be low-quality and hazardous to health.

Also decorative qualities matter. Most often the buyer is faced by the choice between sulfur or black heat-resistant paint silver steel on metal. On sale also other shades though it is more difficult to find them, for example, red, blue, white, green meet. Producers offer dyes by means of which it is possible to create frost or glossy coating. At the same time gloss can possess different degree of gloss.

Features of heat-resistant paint for supports and mufflers

Heat-resistant dyes are used for processing of the parts of the car made of metal. And the covering performs not only decorative function.

Use of heat-resistant paint for the muffler, reels, supports and other elements provides additional protection and also improves characteristics of the machine. In the large cities in winter time of the road fall down the reagents directed to fight against ice. Such aggressive substances are capable to cause corrosion of the metal parts of the car contacting to snow or water.

Thanks to dye heat emission of supports of the machine raises. The matter is that these elements possess porous surface where dirt inevitably collects. As a result cooling time significantly increases. Besides, process of cleaning of node without removal of wheels is at a loss. After processing of parts heat-resistant dye on surface the smooth covering improving thermal exchange, preventing dirt accumulation forms. And process of cleaning of node can be carried out easily by means of small stream of water.

Dyes for processing of metal parts of the car are delivered in three forms:

  1. Barrel (aerosol spray).
  2. Bank.
  3. Set.

Helpful advice! You should not remove completely supports for coloring. It not only will entail additional expenses, but also will cause problems in work of system of brakes.

The choice of paint for supports and technology of drawing

Despite popularity of heat-resistant paint on metal in barrels at the expense of low cost, it is impossible to call this option of finishing by the best. Most often 1 barrel hardly covers the surface of two reels. Besides the technology demands to close carefully other parts of car that during spraying not to soil them.

Dye in bank is a little more expensive than aerosol barrel. Such mix allows to receive clean and qualitative covering by means of brush. At the same time removal of brake system from disks is not required. It is possible to carry the long time spent for coloring to shortcomings of structures of bank.

Sets of heat-resistant dyes contain full range of the means intended for full coloring of metal parts of the car.

As a rule, set includes the following components:

  • cylinder with liquid for cleaning of surface;
  • heat-resistant dye;
  • the grounding structure;
  • auxiliary devices (brush with rigid bristle, protective gloves).

On average coloring process, together with expectation until paint dries, lasts about 2 hours.

Putting dye is carried out in the following order:

  1. Car wheels are removed.
  2. Supports are cleaned from rust and dirt.
  3. Dye is applied on supports in two layers.

Before putting the second layer of material, it is necessary to wait not less than 35 min. The most popular and demanded dyes in this segment: OMP, Kerry, Motip, Foliatec and Kudo.

The choice of heat-resistant paint for brazier or the furnace: popular producers

Most of consumers prefer to buy the painting structures of Certa from the Range company. This type of finishing material is in great demand thanks to optimum technical parameters. The covering is capable to sustain influence of temperatures within range from-65 to 900 °C. The producer offers the extensive color palette including 25 shades.

Pay attention! Each shade of heat-resistant Certa paint has own limit of temperature. Therefore when choosing coloring it is necessary to consider the operating conditions recommended by the producer.

Temperature range of Certa dyes

Paint shadeTemperature indicator, °C
gold, copper, white, green, blue, turquoise, blue, brown700-750
yellow and other colors of palette400-500

The coloring of material has impact and on dye cost.

Alkyd Termal dye from brand of Tikkurila creates covering which is not showered within 3 years on the surface of material. Even if metal will be heated to red luminescence, dye will keep the properties and attractive exterior. Material has one specific feature. Polymerization process of structure is possible only on condition of heating of the processed surface to 230 °C during 1 h.

The following types of paints are considered as not less qualitative: Hansa, Kudo, Bosny, Hammerite, Elcon. The recommended quantity of layers, temperature parameters of drawing and the requirement to process of coloring at each producer different. To receive qualitative result it is very important to adhere to the instruction on packaging.

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